Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Search research articles

Related Experiment Videos

Auditory pathways to the cortex in Tupaia glis

H J Casseday, I T Diamond, J K Harting

The Journal of Comparative Neurology

|April 1, 1976

Summary

The auditory pathways in tree shrews reveal a primary route from the lateral lemniscus to the auditory cortex, with parallel pathways also identified. This organization is similar to that found in cats.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Striatal projections from the cat visual thalamus.

The European journal of neuroscience·2001

Same author

The visual-oculomotor striatum of the cat: functional relationship to the superior colliculus.

Experimental brain research·2001

Same author

Projections from the rostral pole of the inferior colliculus to the cat superior colliculus.

Brain research·2000

Same author

Corticocortical communication via the thalamus: ultrastructural studies of corticothalamic projections from area 17 to the lateral posterior nucleus of the cat and inferior pulvinar nucleus of the owl monkey.

The Journal of comparative neurology·1998

Same author

Cortical somatosensory and trigeminal inputs to the cat superior colliculus: light and electron microscopic analyses.

The Journal of comparative neurology·1997

Same author

Ultrastructural studies of the primate lateral geniculate nucleus: morphology and spatial relationships of axon terminals arising from the retina, visual cortex (area 17), superior colliculus, parabigeminal nucleus, and pretectum of Galago crassicaudatus.

The Journal of comparative neurology·1994

Area of Science:

Neuroscience
Auditory System Research
Comparative Anatomy

Background:

The auditory system's complex pathways are crucial for sound processing.
Understanding these pathways in diverse species aids in comprehending mammalian auditory organization.

Purpose of the Study:

To investigate the auditory pathways in the tree shrew (Tupaia glis).
To identify projections from the lateral lemniscus, inferior colliculus, medial geniculate nucleus, and auditory cortex.
To compare the auditory system organization between tree shrews and cats.

Main Methods:

Lesion studies were performed on the lateral lemniscus, inferior colliculus, medial geniculate nucleus, and auditory cortex.
Axonal degeneration was identified to trace neural pathways.
Comparative analysis with feline auditory system organization was conducted.

Main Results:

A primary auditory pathway was identified: lateral lemniscus -> central inferior colliculus -> ventral medial geniculate nucleus -> auditory koniocortex.
Parallel pathways were observed, including projections to the dorsal medial geniculate nucleus and posterior nucleus.
The tree shrew's auditory system organization shows similarities to that of the cat, particularly in core and belt cortical zones.

Conclusions:

The tree shrew possesses a complex auditory system with multiple parallel pathways.
The identified auditory pathway organization in tree shrews is comparable to that in cats.
The core (konicortex) and belt organization of the auditory cortex may be a conserved mammalian trait.

Related Experiment Videos